Is solar worth it in New South Wales in 2026? Yes — a solid case
A 6.6kW system in New South Wales costs $5,000–$7,300 installed after the $1,817 federal STC discount, generates about 8,643 kWh a year from 4.6 peak sun hours, and saves $1,240–$1,730 a year at 34c/kWh with a 4.00c feed-in tariff. That is a simple payback of 3.6–5.0 yrs on panels warranted for 25 years — roughly $27,262 net benefit over the panels' life at today's prices, before any electricity price rises.
NSW: average sun, high prices, good incentives. At 34c/kWh with 4.6 peak sun hours, a north-facing 6.6kW system pays back in about 3.6–5.0 yrs. The Peak Demand Reduction Scheme battery incentive and the Home Energy Saver interest-free loan (to $15,000) stack with the federal discounts.
NSW has no state solar-panel rebate — the federal STC discount does the heavy lifting. The Home Energy Saver scheme (June 2026) lends up to $15,000 interest-free for solar and batteries, and VPP-linked batteries attract a Peak Demand Reduction Scheme incentive on top of the federal discount.
Payback by city in New South Wales
| City | 6.6kW after STCs | Yearly output | Yearly saving | Payback |
|---|---|---|---|---|
| Sydney | $5,000–$7,280 | 8,643 kWh | $1,240–$1,730 | 3.5–5.0 yrs |
| Newcastle | $5,120–$7,440 | 8,831 kWh | $1,270–$1,770 | 3.5–4.9 yrs |
| Wollongong | $5,120–$7,440 | 8,455 kWh | $1,220–$1,690 | 3.7–5.1 yrs |
| Central Coast | $5,120–$7,440 | 8,643 kWh | $1,240–$1,730 | 3.6–5.1 yrs |
Suburb-level verdicts, with adoption rates and installer notes, are on the New South Wales solar pages.
Which size pays back fastest in New South Wales?
Bigger systems pay back faster in New South Wales because the fixed install cost is spread over more panels — as long as you use the extra power or have a decent feed-in rate.
| System | Installed after STCs | Yearly saving | Payback |
|---|---|---|---|
| 5kW | $4,100–$6,013 | $940–$1,310 | 4.2–5.9 yrs |
| 6.6kW | $5,011–$7,289 | $1,240–$1,730 | 3.9–5.4 yrs |
| 8kW | $5,831–$8,473 | $1,510–$2,100 | 3.7–5.2 yrs |
| 10kW | $7,289–$10,569 | $1,890–$2,620 | 3.7–5.2 yrs |
| 13kW | $9,111–$13,211 | $2,450–$3,410 | 3.6–5.0 yrs |
Is a battery worth it in New South Wales?
A 10kWh battery costs $6,984–$9,984 after the federal discount and saves about $876 a year in New South Wales by moving daytime solar to the evening — a payback of 8.0–13.4 years against a 10-year warranty. The lower the feed-in tariff, the better the battery case — New South Wales’s 4c rate means almost every exported kWh is worth more stored than sold.
The NSW Home Energy Saver interest-free loan (up to $15,000) and the Peak Demand Reduction Scheme battery incentive. Brand pricing in the battery guide.
When solar is not worth it in New South Wales
- Heavy shading from trees or buildings for more than a couple of hours a day — optimisers help, but a 40% shaded roof rarely pays
- Moving within 3 years — solar adds resale value, but usually less than it cost
- Nobody home in daylight and no battery — export-only systems at 4.0c barely cover the inverter
- A quarterly bill under $250 — a 5kW system still makes sense on most roofs, but a 10kW one does not
- Renting without landlord approval — see solar for renters for what does work
New South Wales solar questions
Is solar worth it in New South Wales in 2026?
Yes — a solid case. A 6.6kW system costs $5,000–$7,300 after rebates, saves $1,240–$1,730 a year and pays back in 3.6–5.0 yrs, then keeps producing for 15–20 more years.
What is the solar payback period in New South Wales?
About 3.6–5.0 yrs for a 6.6kW system; faster for 10kW+ and for homes that use most of their power in daylight.
How much does solar save per year in New South Wales?
$1,240–$1,730 for 6.6kW at 34c/kWh, assuming about 40% self-use and 4.0c for exports. A 10kW system saves $1,890–$2,620.
What rebates are there in New South Wales?
The federal STC discount ($1,817 on 6.6kW in Zone 3), the federal battery discount ($252/kWh) and the NSW Home Energy Saver interest-free loan (up to $15,000) and the Peak Demand Reduction Scheme battery incentive. Details on the NSW rebates page.
Other states
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